Cage-fastening.



h. B. CAMPBELL.

CAGE FASTENING.

APPLICATION FILED MAY 24. I918.

1,290,906. I Patented Jan. 14, 1919.

Edward 5 dwz. @764 Jflariwy UNITED STATES PATENT OFFICE.

EDWARD B. CAMPBELL, OF ST. LOUIS, MISSOURI, ASSIGNOR T0 WILLIAMS PATENT CRUSHER AND PULVERIZER MISSOURI.

00., on ST. LOUIS, MISSOURI, A CORPORATION 01? CAGE-FASTENING.

Patented Jan. 14, 1919.

1 Application filed May 24, 1918. Serial No. 236,303. I

To 01 whom it may concern:

Be it known that I, EDWARD B. CAMPBELL, a citizen of the United States, residing at St. Louis, State of Missouri, have invented certain new and useful Improvements in Cage-Fastenings, of which the following is a specification.

This invention relates to certain new and useful improvements in cage fastenings for grinders, the pecularities of which will be hereinafter described and claimed.

The object of my improvements is to provide Wedge means for holding a cage in position in an arcuate slot in the side of a casing of a grinder,said wedge means being a variation of the means used in my prior application on grinders filed May 20, 1918, Serial Number 235,583.

In the accompanying drawing on which like reference letters indicate corresponding parts, Figure 1 represents a side view of a casing such as described in the application above referred to and embodying the improvements of the present application; and Fig. 2 a cross sect'on of the side casmg on the line X of Fig. 1.

Inthe application above referred to, the arcuate slot in the side of the casing was provided with a wedge surface on its lower edge, and a filler piece adapted to bear on said edge and press upward against the cage located in the slot when transverse rods, or other suitable means, caused the wedge filler pieces to be drawn inward and upward. In the present application, I have provlded wedge means that act parallel. to the side of the said casing to. effect said upward pressure against a cage located in sald slot.

The letter A designates the side of a suitable casing for a grinder of the character before described in application mentioned above, and the letter B an arcuate slot in the side of said casing. The upper wall of said slot is in a cylindrical plane about the axis of said casing and adapted to receive in bearing position, a portion of the perforated cage C which is adapted to be slipped within said casing through said slot, as it is arched according to said upper surface of the slot. The bottom wall of said slot is provided with a groove preferably rectangular at D, forming a recess in the side casing, and providing a vertical surface E on the outside of a flange F, and a lateral surface G, about as wide as the casing A is adapted to fit thick and preferably parallel to the upper cylindrical surface of the said slot. Within this groove is fitted one or more filler pieces I, preferably angular,that is, with a vertical portion or flange I fitting in said groove D and bearing on the side face of the vertical flange F the said filler piece, being preferably in the shape of a lateral flange H extending outward and forming with the vertical flan e a bearing surface for the underside of said cage. Wedge meansthat is, such as a key J, preferably rectangular and thinner horizontally than vertically-is fitted under said lateral flange H, and bears on a shoulder K projecting from the side of said housing and forming part of a'hook lug,the hook portion L of which is adapted to bear against the outside face of said key, and thus hold it against the vertical flange of the filler piece as indicated in Fig. 2.

The filler pieces II might be combined in one piece; but by being in two or more pieces are more readily inserted in their bearing position against the under side of said cage, and likewise allow of readier adjustment to said cage when a cage of thicker radial dimensions is used in said casing. It will be noted that the side casing is thickened by a flange M on the inside above the cage, and a similar outer flange N, to form the bearing for said cage.

-I have shown two of said hook lugs L, and each with its wedge J adapted to exert the required upward pressure between the shoulder of the sides of thecasing formed by the hook lug and the lateral flange of the filler piece I. The vertical web of the filler piece serves to close the opening of the arcuate slot below the cage, as Well as to give vertical stiffness to transmit the pressure other portion of.

upward toward the cage; the lateral flange before mentioned stiifens the filer piece laterally, and transmits the pressure received from the wedge to the cage above it.

I claim: a

1. A. grinder comprising a suitable casing having in the side thereof an arcuate slot with an adjacent groove rectangular in. cross section, a cage having an end'in said slot, a filler piece having a vertical flange in said groove, and a lateral to engage the under side of a key located below said lateral the filler piece, and a hook lug flange adapted said cage, flange of rigid with said casing, and having a shoulder and a hook for engagement with the bottom and the side respectively of said key.

2. A grinder comprising a suitable casing having an arcuate slot in the side of said casing,-the bottom of said slot having a groove, a plurality of filler pieces, each having a vertical flange located in said groove and a lateral flange adapted to bear on said cage, and means to exert a pressure below the lateral flange and hold the cage in position in said slot. 1 3. A grinder comprising a suitable casing having a shoulder thereon and an arcuate slot in the side of said casing, an arched cage adapted to enter the casing through said slot and bear on the upper edge of said slot, a filler iece located below said cage, and a key a justably mounted between said shoulder and said filler piece, to hold the filler piece and cage against the upper edge of said slot.

In testimony whereof I have aflixed my signature in the presence of two witnesses.

EDWARD B. CAMPBELL. Witnesses:

H. M. PLAISTED, T. P. Mmnanms. 

